aha152x.h 9.94 KB
Newer Older
Linus Torvalds's avatar
Linus Torvalds committed
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300
#ifndef _AHA152X_H
#define _AHA152X_H

/*
 * $Id: aha152x.h,v 2.7 2004/01/24 11:39:03 fischer Exp $
 */

/* number of queueable commands
   (unless we support more than 1 cmd_per_lun this should do) */
#define AHA152X_MAXQUEUE 7

#define AHA152X_REVID "Adaptec 152x SCSI driver; $Revision: 2.7 $"

/* port addresses */
#define SCSISEQ      (HOSTIOPORT0+0x00)    /* SCSI sequence control */
#define SXFRCTL0     (HOSTIOPORT0+0x01)    /* SCSI transfer control 0 */
#define SXFRCTL1     (HOSTIOPORT0+0x02)    /* SCSI transfer control 1 */
#define SCSISIG      (HOSTIOPORT0+0x03)    /* SCSI signal in/out */
#define SCSIRATE     (HOSTIOPORT0+0x04)    /* SCSI rate control */
#define SELID        (HOSTIOPORT0+0x05)    /* selection/reselection ID */
#define SCSIID       SELID                 /* SCSI ID */
#define SCSIDAT      (HOSTIOPORT0+0x06)    /* SCSI latched data */
#define SCSIBUS      (HOSTIOPORT0+0x07)    /* SCSI data bus */
#define STCNT0       (HOSTIOPORT0+0x08)    /* SCSI transfer count 0 */
#define STCNT1       (HOSTIOPORT0+0x09)    /* SCSI transfer count 1 */
#define STCNT2       (HOSTIOPORT0+0x0a)    /* SCSI transfer count 2 */
#define SSTAT0       (HOSTIOPORT0+0x0b)    /* SCSI interrupt status 0 */
#define SSTAT1       (HOSTIOPORT0+0x0c)    /* SCSI interrupt status 1 */
#define SSTAT2       (HOSTIOPORT0+0x0d)    /* SCSI interrupt status 2 */
#define SCSITEST     (HOSTIOPORT0+0x0e)    /* SCSI test control */
#define SSTAT3       SCSITEST              /* SCSI interrupt status 3 */
#define SSTAT4       (HOSTIOPORT0+0x0f)    /* SCSI status 4 */
#define SIMODE0      (HOSTIOPORT1+0x10)    /* SCSI interrupt mode 0 */
#define SIMODE1      (HOSTIOPORT1+0x11)    /* SCSI interrupt mode 1 */
#define DMACNTRL0    (HOSTIOPORT1+0x12)    /* DMA control 0 */
#define DMACNTRL1    (HOSTIOPORT1+0x13)    /* DMA control 1 */
#define DMASTAT      (HOSTIOPORT1+0x14)    /* DMA status */
#define FIFOSTAT     (HOSTIOPORT1+0x15)    /* FIFO status */
#define DATAPORT     (HOSTIOPORT1+0x16)    /* DATA port */
#define BRSTCNTRL    (HOSTIOPORT1+0x18)    /* burst control */
#define PORTA        (HOSTIOPORT1+0x1a)    /* PORT A */
#define PORTB        (HOSTIOPORT1+0x1b)    /* PORT B */
#define REV          (HOSTIOPORT1+0x1c)    /* revision */
#define STACK        (HOSTIOPORT1+0x1d)    /* stack */
#define TEST         (HOSTIOPORT1+0x1e)    /* test register */

#define IO_RANGE        0x20

/* used in aha152x_porttest */
#define O_PORTA         0x1a               /* PORT A */
#define O_PORTB         0x1b               /* PORT B */
#define O_DMACNTRL1     0x13               /* DMA control 1 */
#define O_STACK         0x1d               /* stack */

/* used in tc1550_porttest */
#define O_TC_PORTA      0x0a               /* PORT A */
#define O_TC_PORTB      0x0b               /* PORT B */
#define O_TC_DMACNTRL1  0x03               /* DMA control 1 */
#define O_TC_STACK      0x0d               /* stack */

/* bits and bitmasks to ports */

/* SCSI sequence control */
#define TEMODEO      0x80
#define ENSELO       0x40
#define ENSELI       0x20
#define ENRESELI     0x10
#define ENAUTOATNO   0x08
#define ENAUTOATNI   0x04
#define ENAUTOATNP   0x02
#define SCSIRSTO     0x01

/* SCSI transfer control 0 */
#define SCSIEN       0x80
#define DMAEN        0x40
#define CH1          0x20
#define CLRSTCNT     0x10
#define SPIOEN       0x08
#define CLRCH1       0x02

/* SCSI transfer control 1 */
#define BITBUCKET    0x80
#define SWRAPEN      0x40
#define ENSPCHK      0x20
#define STIMESEL     0x18    /* mask */
#define STIMESEL_    3
#define ENSTIMER     0x04
#define BYTEALIGN    0x02

/* SCSI signal IN */
#define SIG_CDI          0x80
#define SIG_IOI          0x40
#define SIG_MSGI         0x20
#define SIG_ATNI         0x10
#define SIG_SELI         0x08
#define SIG_BSYI         0x04
#define SIG_REQI         0x02
#define SIG_ACKI         0x01

/* SCSI Phases */
#define P_MASK       (SIG_MSGI|SIG_CDI|SIG_IOI)
#define P_DATAO      (0)
#define P_DATAI      (SIG_IOI)
#define P_CMD        (SIG_CDI)
#define P_STATUS     (SIG_CDI|SIG_IOI)
#define P_MSGO       (SIG_MSGI|SIG_CDI)
#define P_MSGI       (SIG_MSGI|SIG_CDI|SIG_IOI)

/* SCSI signal OUT */
#define SIG_CDO          0x80
#define SIG_IOO          0x40
#define SIG_MSGO         0x20
#define SIG_ATNO         0x10
#define SIG_SELO         0x08
#define SIG_BSYO         0x04
#define SIG_REQO         0x02
#define SIG_ACKO         0x01

/* SCSI rate control */
#define SXFR         0x70    /* mask */
#define SXFR_        4
#define SOFS         0x0f    /* mask */

/* SCSI ID */
#define OID          0x70
#define OID_         4
#define TID          0x07

/* SCSI transfer count */
#define GETSTCNT() ( (GETPORT(STCNT2)<<16) \
                   + (GETPORT(STCNT1)<< 8) \
                   + GETPORT(STCNT0) )

#define SETSTCNT(X) { SETPORT(STCNT2, ((X) & 0xFF0000) >> 16); \
                      SETPORT(STCNT1, ((X) & 0x00FF00) >>  8); \
                      SETPORT(STCNT0, ((X) & 0x0000FF) ); }

/* SCSI interrupt status */
#define TARGET       0x80
#define SELDO        0x40
#define SELDI        0x20
#define SELINGO      0x10
#define SWRAP        0x08
#define SDONE        0x04
#define SPIORDY      0x02
#define DMADONE      0x01

#define SETSDONE     0x80
#define CLRSELDO     0x40
#define CLRSELDI     0x20
#define CLRSELINGO   0x10
#define CLRSWRAP     0x08
#define CLRSDONE     0x04
#define CLRSPIORDY   0x02
#define CLRDMADONE   0x01

/* SCSI status 1 */
#define SELTO        0x80
#define ATNTARG      0x40
#define SCSIRSTI     0x20
#define PHASEMIS     0x10
#define BUSFREE      0x08
#define SCSIPERR     0x04
#define PHASECHG     0x02
#define REQINIT      0x01

#define CLRSELTIMO   0x80
#define CLRATNO      0x40
#define CLRSCSIRSTI  0x20
#define CLRBUSFREE   0x08
#define CLRSCSIPERR  0x04
#define CLRPHASECHG  0x02
#define CLRREQINIT   0x01

/* SCSI status 2 */
#define SOFFSET      0x20
#define SEMPTY       0x10
#define SFULL        0x08
#define SFCNT        0x07    /* mask */

/* SCSI status 3 */
#define SCSICNT      0xf0    /* mask */
#define SCSICNT_     4
#define OFFCNT       0x0f    /* mask */

/* SCSI TEST control */
#define SCTESTU      0x08
#define SCTESTD      0x04
#define STCTEST      0x01

/* SCSI status 4 */
#define SYNCERR      0x04
#define FWERR        0x02
#define FRERR        0x01

#define CLRSYNCERR   0x04
#define CLRFWERR     0x02
#define CLRFRERR     0x01

/* SCSI interrupt mode 0 */
#define ENSELDO      0x40
#define ENSELDI      0x20
#define ENSELINGO    0x10
#define ENSWRAP      0x08
#define ENSDONE      0x04
#define ENSPIORDY    0x02
#define ENDMADONE    0x01

/* SCSI interrupt mode 1 */
#define ENSELTIMO    0x80
#define ENATNTARG    0x40
#define ENSCSIRST    0x20
#define ENPHASEMIS   0x10
#define ENBUSFREE    0x08
#define ENSCSIPERR   0x04
#define ENPHASECHG   0x02
#define ENREQINIT    0x01

/* DMA control 0 */
#define ENDMA        0x80
#define _8BIT        0x40
#define DMA          0x20
#define WRITE_READ   0x08
#define INTEN        0x04
#define RSTFIFO      0x02
#define SWINT        0x01

/* DMA control 1 */
#define PWRDWN       0x80
#define STK          0x07    /* mask */

/* DMA status */
#define ATDONE       0x80
#define WORDRDY      0x40
#define INTSTAT      0x20
#define DFIFOFULL    0x10
#define DFIFOEMP     0x08

/* BURST control */
#define BON          0xf0
#define BOFF         0x0f

/* TEST REGISTER */
#define BOFFTMR      0x40
#define BONTMR       0x20
#define STCNTH       0x10
#define STCNTM       0x08
#define STCNTL       0x04
#define SCSIBLK      0x02
#define DMABLK       0x01

/* On the AHA-152x board PORTA and PORTB contain
   some information about the board's configuration. */
typedef union {
  struct {
    unsigned reserved:2;    /* reserved */
    unsigned tardisc:1;     /* Target disconnect: 0=disabled, 1=enabled */
    unsigned syncneg:1;     /* Initial sync neg: 0=disabled, 1=enabled */
    unsigned msgclasses:2;  /* Message classes
                                 0=#4
                                 1=#0, #1, #2, #3, #4
                                 2=#0, #3, #4
                                 3=#0, #4
                             */
    unsigned boot:1;        /* boot: 0=disabled, 1=enabled */
    unsigned dma:1;         /* Transfer mode: 0=PIO; 1=DMA */
    unsigned id:3;          /* SCSI-id */
    unsigned irq:2;         /* IRQ-Channel: 0,3=12, 1=10, 2=11 */
    unsigned dmachan:2;     /* DMA-Channel: 0=0, 1=5, 2=6, 3=7 */
    unsigned parity:1;      /* SCSI-parity: 1=enabled 0=disabled */
  } fields;
  unsigned short port;
} aha152x_config ;

#define cf_parity     fields.parity
#define cf_dmachan    fields.dmachan
#define cf_irq        fields.irq
#define cf_id         fields.id
#define cf_dma        fields.dma
#define cf_boot       fields.boot
#define cf_msgclasses fields.msgclasses
#define cf_syncneg    fields.syncneg
#define cf_tardisc    fields.tardisc
#define cf_port       port

/* Some macros to manipulate ports and their bits */

#define SETPORT(PORT, VAL)	outb( (VAL), (PORT) )
#define GETPORT(PORT)		inb( PORT )
#define SETBITS(PORT, BITS)	outb( (inb(PORT) | (BITS)), (PORT) )
#define CLRBITS(PORT, BITS)	outb( (inb(PORT) & ~(BITS)), (PORT) )
#define TESTHI(PORT, BITS)	((inb(PORT) & (BITS)) == (BITS))
#define TESTLO(PORT, BITS)	((inb(PORT) & (BITS)) == 0)

#define SETRATE(RATE)		SETPORT(SCSIRATE,(RATE) & 0x7f)

#if defined(AHA152X_DEBUG)
enum {
  debug_procinfo  = 0x0001,
  debug_queue     = 0x0002,
301
  debug_locking   = 0x0004,
Linus Torvalds's avatar
Linus Torvalds committed
302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334
  debug_intr      = 0x0008,
  debug_selection = 0x0010,
  debug_msgo      = 0x0020,
  debug_msgi      = 0x0040,
  debug_status    = 0x0080,
  debug_cmd       = 0x0100,
  debug_datai     = 0x0200,
  debug_datao     = 0x0400,
  debug_eh	  = 0x0800,
  debug_done      = 0x1000,
  debug_phases    = 0x2000,
};
#endif

/* for the pcmcia stub */
struct aha152x_setup {
	int io_port;
	int irq;
	int scsiid;
	int reconnect;
	int parity;
	int synchronous;
	int delay;
	int ext_trans;
	int tc1550;
#if defined(AHA152X_DEBUG)
	int debug;
#endif
	char *conf;
};

struct Scsi_Host *aha152x_probe_one(struct aha152x_setup *);
void aha152x_release(struct Scsi_Host *);
335
int aha152x_host_reset_host(struct Scsi_Host *);
Linus Torvalds's avatar
Linus Torvalds committed
336 337

#endif /* _AHA152X_H */